Switch-stand.



A. A. STROM.

SWITCH STAND.

APPLICATION FILED JULY 15, 1909.

` Patented sept.21,1909.

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A. A. sTRoM.` SWITCH STAND.

APPLICATION FILED JULY 15, 1909.

9343852. Patented sept. 21,1909.

3 SHEETS-SHEET 2.

A. A. STROM SWITCH STAND.

APPLICATION FILED JULY15. 1909.

Patented Septa 21, 1909.

UNITED STATES PATENT GEIQ..

AXEL A. STROM, OF AUSTIN, ILLINOIS, ASSIGNOR TO PETTIBONE, MULLIKEN &COM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SWITCH-STAND.

To all whom it may concern:

Be it known that I, AXEL A. STROM, a citizen of the United States,residing at Austin, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Switch-Stands, of which thefollowing is a specification.

My invention relates to an impro-vement in switch-stands of the class inwhich the throwing of the switch is controlled by a lever connected withit through the stand and adapted to be turned through the arc of acircle in a vertical plane to operate the switch.

In the accompanying drawings, Figure 1 is a plan view of a switch-standembodying my improvement and showing, by dotted representation, themechanism housed in the casing and the positions of the parts to whichthey are brought by throwing the operating lever to the position inwhich it is shown by the full-line representation; Fig. 2 is a sectionon line 2, F ig. 1, and Figs. 3 and 4 are broken sections taken,respectively, on lines 3 and 4, Fig. 1, but showing the operating leverin a position midway between the ends of its throw with the other partsof the mechanism in their resultant positions, thereby the better toillustrate the construction.

The casing 5 comprises a crown-portion 0 of generally rounded shape,with laterally-extending wings 7, 7 adapted to seat on head-blocks 8,the ends of the casing at right-angles to the wings terminating independing` bearings 9 for the trunnion-ends of a rocking head whichforms the mechanism in the casing to be actuated by turning to throw aswitch through the medium of a longitudinally-movable switch-rodconnecting it with the head. The crown 6 contains a Cain-slot 10extending at a suitable inclination between the wings 7. The head 11 isa generally-cylindrical body preferably hollow for the sake of lightnessand formed midway between its ends with a. laterallyprojecting socket12. The end-portions of the head form trunnions 13 and 14 at which it isjournaled in the bearings 9, the lower parts of which are separatepieces bolted to the upper parts that are formed on the casing; and inthe socket is fastened the inner cylindrical end of the operating-lever14, having rotatably mounted on its cylindrical section a taperinganti-friction roller 15 to Specification of Letters Patent.

Application led July 15, 1909.

Patented Sept. 21, 1909.

serial No. 507,855.

bear against the outer end of the socket under confinement by a collar14l formed about the lever. The lever thus works in the camslot byengagement of the roller 15 with either side thereof, depending on thedirection of throwing the lever, to rock the head 11 and at the sametime move it longitudinally in its bearings. The trunnion 13 is providedwith an internal coarse and preferably Hat screw-thread 10 extendingshort of its outer end, to engage the threaded end 17 of a switch-rod1S. The screw-connection between the head and switch-rod permits niceadjustment of the stand in setting it relative to a switch; but theprimary purpose of the connection is to provide a loose joint betweenthe parts that will enable the head to be turned in its bearings withoutbinding at the oint, and by its longitudinal movement in turning, due tothe camaction of the slot 10, move the rod 18 correspondingly to throwthe switch.

A semaphore-device is shown to be provided to coperate with theswitch-throwing mechanism, and it consists of a spindle 19 journaled ina bearing 20 provided on the easing, the spindle carrying a target 21and being adapted to carry a signal-lamp, as usual. On the lower end ofthe spindle, within the casing, is provided a crank-arm 22 having arecessed or bifurcated outer end, by which to produce a ninety-degreeturn of the spindle with each throw of the switch. For thus operatingthe semaphore a rigid lip 23 is provided on the trunnion 13 in positionto engage the bifurcated end of the crank-arm at either end of its throwin the longitudinal movement of the head, and thereby turn the spindlewith each operation of the switch-stand. As seen in F ig. 2, the lip 23is of a shape and is so set on the trunnion 13 as to engage its greaterdiameter with the bifurcated end of the crank-arm when the latter is ateither end of its throw, where it presents the greatest angle ofinclination to the lip; thereby to insure the required engagement atthose points.

I have shown certain features of construction in this application whichare not covered by the claims herein, the same being covered by claimsin my companion application No. 507 ,854, filed July 15, 1909.

What I claim as new and desire to secure by Letters Patent is- 1. In aswitch-stand, the combination of a of the Casing, a head terminatingatfts op- Wfithin the casing, an operatinglevereii-y 'tending-'troni thehead through saidslot,; andY a switch-rod having-a-l threaded leiideripose set'forth.

leasing provided with a Cain-slot and vWit-h posite ends in trunnions,-atwvhieh it -is 'in the casing, an operating-lever extending thepurpose set forth.

casing provided with a Cain-slot and With Gnd-bearings,a head having arelatively en larged intermediate section .terminating at its' oppositeends in trunnions, at which it is journaled in said bearings tobehoused. Within the Casing7 an operating-lever eX- tending-` from thehead rthrough said slot,and

posite ends in 'trunnions, .at which it isi journaled v-iii saidbearings t-o *bei housedi gagngone of said trunnionsyvfor thepur-' In aswitch-stand, the eoniloination of a end-bearings, .a head terminatingati-its opjournaled in said bearings to he housed Withfronrthe headJthrough `said slot, and a switch-rody having` an adiustable@loose-Jointconnection with one of said truniiions, for

LL'In a svviteh-staiid7 the lcombination of. a casing comprisingcrown-portion having Wings proiecting troni opposite sides, With aCain-slot in the crown-portionincliniiigbetween -said Wings,4 bearingson opposite. ends .posite ends in trunnions, at which it is journaled insaid hearings to be housed `With- `)in the easing, an operatingfleverextending from the head through said slot, and a .Switch-rod having-aloose-joint Connection .with one of said trunnions, for the purpose `setforth.

5. In a switch-stand, the combination of a easing comprising acrown-portion having Wings projecting from opposite sides, with aCain-slot in the -eroWn-portion inelining hetiveen said Wings, bearingson lopposite ends f of Athe easiiigfaiheadterniinating at `itsoppositeends `in trunnions, at Awhich vit is ournaled in sai'dfbearingsto be housedA With- -vin thef'easingfoneA o'f-svaid truniiions beinginternally threaded, an voperatingflevereX- tendingf'froni the headthroi'ig-h saidslot, an

vantietiiieton roller oiiA the lever- Working in the oanifslot, Vand la-sWitch-rod 'having a vthreaded end screwing into said threadedtriinniong tor: the purpose set forth. n

G. QIn aswitolrstand'7 the combination-of a casing provided With acam-slot, -aliead `.terminating-at opposite` ends inlv trunnions ativhieh it .v is Ijournaled 1 in the easing` to be Ihoused tlierein, Aanoperating lever extendingl'irorn the head through-'said- 'slot, a lip.on

l`the y head, and -`a -eranli-arni rotatably supported to extend in theeasing into 'thepath of` said' lip.

AXEL A. STROM.

In presence of- Y PR. "A, RAYMOND, R. SGHAEFER

